123134-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123134-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,1,3 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 123134-20:
(8*1)+(7*2)+(6*3)+(5*1)+(4*3)+(3*4)+(2*2)+(1*0)=73
73 % 10 = 3
So 123134-20-3 is a valid CAS Registry Number.
InChI:InChI=1/C35H28O22/c36-15-1-11(2-16(37)25(15)44)30(47)54-23-9-35(53,34(51)52)10-24(29(23)57-33(50)13-5-19(40)27(46)20(41)6-13)55-31(48)14-7-21(42)28(22(43)8-14)56-32(49)12-3-17(38)26(45)18(39)4-12/h1-8,23-24,29,36-46,53H,9-10H2,(H,51,52)/t23-,24-,29+,35-/m1/s1